package stringDemo;
import java.util.Scanner;
public class StringTest4 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        String phoneNum=scanner.nextLine();
        String head=phoneNum.substring(0,3);
        String tail=phoneNum.substring(7);
        System.out.println(head+"****"+tail);
    }
}
